Oil-engine.



CROSS.

Patented Feb. 9, 1915.

OIL ENGINE.

INVENTOR.

HIS AORNFY IN FACT.

APPLICATION FILED MAY17, 1910A wglrys si i/ UNITED s'rA'rEs PATENT oEEioE.

JAMES WILLIAM onos's, 0E LoND'oN, ENGLAND, As'sIeNon 'ro THE WEsTiNeHoUsE BRAKE COMPANY, LIMITED, or LoNnoN, ENGLAND.

oL-ENGINE.

Specification of Letters Patent.

Application led May 17, 1910. Serial No. 561,794.

T0 all whom it may concern Be it known that I, JAMES WILLIAM CROSS, a subject of the King of Great Britain, and resident of London, England, have made a new and useful Improvement in Oilamount of oil which is supplied to the combustion chamber at each stroke is correspondingly limited. It is, however, impracticalole to reduce. the oil supply below a certain limit because the mixture vwould be'- come too weak to ignite. The yrange of power developed by the engine is therefore unduly restricted. According to the present invention, in order to obviate this defeet, the combustion chamber is formed in `two or more parts,each of which is provided with anv independent oil supply and in each of which independent ignition takes place. By this means the total oil supply to the engine can be reduced by cutting off the supply from one or more of the parts of the combustion chamber without interfering with the proper ignition of the fuel in the other parts of the combustion chamber which are supplied with the customary amount. The variation in the oil4 supply may be effected either manually or automatically by means of a suitable governor as desired.

In order -that the invention may be clearly understood, an example of how it may be carried out in practice will now be described with reference to the accompanying drawing the single figure of which is a view in sectional elevation of a portion of an oil engine showing the invention applied thereto.

The valve mechanism of the engine comprises an air inlet valve l arranged adjacent.

to the end of the cylinder 2 of the engine, an exhaust valve 3, air valves 4 and 5 arranged at the'top of the combustion chamber 6 which is a well defined extension of the cylinder 2A and is in free communication therewith by vmeans of a passage 7.

The combustion chamber 6 is shown divided into two portions 8 and-9 by means of a partition l0 attached to theinner wall of the combustion chamber andpro]ecting outwardly into the passage 7. Fuel valves Patented'Feb. 9, 191,51

ll'and 12 are provided adapted to,project the fuel" into the compartments-8 and 9 of the combustion chamber at the end of the l compression stroke. These. valves 'may be of any well known construction and can be arranged to inject the fuel either in a liquid or'in'a vaporized state. l

The air inlet valve 1 and the air inlet valves 4 and 5 are of well known construction and are operated by any suitable typel of mechanism in a Well known manner.

here shown, the air valve 1 is normally re 4 and 5 are provided with similar springs 16 and 17 respectively which normally retain the valves upon their seats.-

The cylinder of the engine is shown prol vided with the usual water jacket 18 and with passages 19 for liquid circulation ar-` ranged adjacent to those parts which areI liable to become yover-heated.

The ignition of the fuel may be accomplished by any suitable or well known ignition devices or the compression of the air and high temperature of the combustion chamber may be relied upon for producing ignition.

In the arrangement here shown, the combustion chamber is divided Iinto two compartments so that when the power is required to be reduced, the amount of oil supplied to one compartment' only will be va-V ried until the oil suppliedl to that compartment has reached. a lpoint when to fur-l i ther reduce the supply of oil to that compartment, the mixture would, become too weak to ignite. power required will be effected by correspondingly reducing the amount of oil su plied to the other compartment and by th s means a variationl in the power'ekerted by Further reduction in the ioo the engine may be obtained Within Wide limits.

lt will be understood that the oil supply may be varied cith .r manually or automatically and means for etlecting such variation manually are illustrated diagrammatically at Q0. In cases in which a very wide variation in the power exerted by thc engine is desirable, the combustion chamber may be divided into a greater number of compartments, a separate oil supply valve being provided in each comiiartment.

From an inspection of the drawing it will be apparent that if the oil supply to one compartment is cut olf entirelythe explosion will occur in the other compartment and effect the desired outward movement of the piston with a correspmiding?r reduction in power.

From the foregoing description. it will be clear that the total. amount of oil supplied can be reduced much below that which it would be necessary to supply if at all times the whole of the combustion chamber were utilized to form a gaseous mixture, the presence of air in one compartment of the com bustion chamber to which the supply of liquid fuel has been cut ofi' in no way affecting the explosion in the other compartment or compartments to which liquid fuel is beingr supplied. The engine is therefore much more liexible and range of power which it can develop is much greater than is the case with engines of the ordinary construction.

1t will be understood that the invention is not limited to the particular construction and arrangement of the valves herein described and illustrated. and various modifications may be. made Without exceeding the scope thereof, for instance, the invention can be applied to oil engines Working on a two-strokc, four-stroke or other cycle and having any desired number of cylinders.

Vhat I claim isl. The combination'in an oil engine of a combustion chamber divided into a plurality of continuously connected coinpartments and means for varying the supply of comlnistible l'uel to each compartment.

2. 'l'he combination in an oil engine of a combustion chamber divided into a plurality of continiuuisly connected compartments and means for independently varying the Cfupply of combustible fuel to each compartment. y

3. The combination in an oil engine of a combustion chamber divided into a plurality of continuously connected symmetrically arranged comino-talents and means for varying the amount of combustible fuel supplied to cach comiiiartimut.

4. The combination in an 'oil engine, of a coiulnistion chamber divided into a plurality of continuously connected symmetrically arran ed compartments and means for indepen( entlylvarying the amount of combustible fuel supplied to each coml'iarti'ncnt.

5. The combination in anoil engine, ot a. combustion chamber divided into a plurality of continuously connected pi'npartim'fnts and means for supplying combustible fuel to cach of said compartments in accordance with the load.

G. The combination in an oil engine, of a combustion chamber divided into a plurality of continuously connected compartments and means for independently varying the amount of combustible fuel supplied to each compartment in accordance with the load.

7. The combination in an oil engine, of a combustion chamber divided into a plurality of continuously connected compartments, means for indepei'idcntly varying the amount of combustible fuel supplied to each compartment, and means common to .all compartments for igniting the explosive mixture adn'iitted to the combustion chamber.

8. The combination in an oil engine, of a combustion chamber divided into a plurality of continuously connected compartments, a

separate fuel injection device located in each compartment and means for independently varying the amount of combustible fuel supplied to each compartment.

9. The combination in an oil engine, of a combustion chamber divided into a plurality of continuously connected. compartments, a separate fuel injection device located in each compartment, an air inlet valve supplying air to the engine cylinder through the conibustion chamber and means for varying the amount of combustible supplied to each compartaient.

10. The con'ibinati'on in an oil engine, of a combustion chamber divided into a plurality of continuously connected con'ipartments each of which is 1n free communication with' the cylinder of the engine, an air inlet valve for admitting air to each compartment and an air inlet valve supplying air directly into the cylinder.

1l. The combination in an oil engine, of a combustion chamber divided into a plurality of continuouslv connected compartments, separate inlets for the combustiblel .fuel located in each compartment, air inlet valves for admitting air through said compartment to the cylinder and means for varying the amount of combustible suppliedto each comi'iartnient.

12. 'lhe combination in an oil engine, of a combustion chamber divided into a vi'ilurality of continuously connected compartments, an injection device for the coi'nbustible fuel located in each compartment, a separate air inlet valve for each compartment and an air inlet valve for supplying air directly into the cylinder.

13. ln combination with a cylinder of an 1,1aa,1os 3 internal combustion engine, a combustion chamber divided into a plurality of combustion compartments, each of which is in open and continuous communication with 5 the enfine cylinder.

14. n combination with the cylinder and piston of an internal combustion engine a combustion' chamber located in the cyln er head of the engine and divided into a plural- 10 it of combustion compartments, each of .w ich is in open and continuous communication with the engine cylinder and forms a pocket partially segregated b the piston when the piston is at the end o its compres- 15 sion stroke.

15. In combination with the cylinder and .piston of an internal combustion engine, a

combustion chamber located at the compression end of the cylinder and divided into compartments by means of a partition 2@ extending parallel to the line ofmotion of the piston, each of said compartments bein in continuous and open communication wit the engine cylinder.

In testimony whereof I have hereunto sub- 25 scribed my name this twenty-eighth day of April, 1910.

JAMES WILLIAM CROSS.

Witnesses: n

A. A. BERGIN, CHAs. J. FALooNlm. 

